Zhou S., Kong X., Zheng B. et al. · ACS Nano · 2019 · 9578-9586
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
The CNF@Ni-HITP symmetric supercapacitor combines high capacitance, high rate capability, high cycling stability, and mechanical flexibility.
Caveat: Some extended potential-window, Ragone, and flexibility video details are in SI/videos.
rendered pages 6-7 / article pp.9583-9584 · Results and Discussion; Conclusions · Figure 4 · Linked to 9 structured results
Extending the supercapacitor potential window above 1.0 V increases capacitance/energy but reduces Coulombic efficiency, cycle stability, and rate capability, likely due to minor faradaic processes.
Caveat: Supplementary figures were available; some curve values remain approximate where only axes/labels were shown.
rendered page 6 / article p.9583 · Results and Discussion · Figures 4a and S22-S26 · Linked to 5 structured results
Continuous c-MOF nanolayers on CNFs create fewer grain boundaries and smaller interparticle spaces than c-MOF powders or direct-mixed papers, leading to much higher conductivity.
Caveat: Conductivity values are strong; microscopic mechanism is an author interpretation.
rendered page 4 / article p.9581 · Results and Discussion · Figure 2b · Linked to 6 structured results
CNF@c-MOF nanopapers have much higher capacitance than CNF-c-MOF direct-mixed papers with the same components because the interfacial nanofiber network improves electron transfer and ion transport.
Caveat: Direct-mixed paper fabrication details are in SI, but capacitance comparison values are reported in main text.
rendered page 5 / article p.9582 · Results and Discussion · Figure 3e,f · Linked to 5 structured results
Ni2+ species in CNF-Ni act as bridges that bond CNF and Ni-HITP, resulting in integrated CNF@Ni-HITP nanofibers.
Caveat: Full XPS spectra are in SI; main text provides deconvoluted peak positions and assignment.
rendered page 4 / article p.9581 · Results and Discussion · Figure 1d and Figure S5 · Linked to 4 structured results
Hierarchical micropore/mesopore porosity in CNF@c-MOF nanopapers facilitates electrolyte transport, while high conductivity facilitates charge transfer.
Caveat: EIS table values are exact SI_table extractions; mechanistic interpretation remains author-assigned.
rendered pages 4-5 / article pp.9581-9582 · Results and Discussion · Figure 2d and Figure 3f · Linked to 9 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| cellulose nanofibers | cellulose nanofibers from Cladophora algae | unknown · Model SystemCarboxylated cellulose nanofiber substrate/support after TEMPO oxidation and Ni2+ ion exchange. | SI p.2 · Supplementary Experimental Section - Pretreatment on Cladophora cellulose |
| CNF@c-MOF-CNT nanopaper | CNF@c-MOF-CNT; exact c-MOF identity and CNT loading not specified in the captionNi(II) c-MOF component inferred from CNF@c-MOF context; not fully specified for the CNT variant · HHTP/HITP not specified for the CNT variant in the supplied SI caption | 2D · CompositeCNT-containing CNF@c-MOF composite nanopaper shown in SI Figure S20 with original, bent, and folded states and electrochemical curves. | SI p.17 · Supplementary Results · Figure S20 |
| CNF@Ni-HHTP hybrid nanofibers / nanopaperBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | CNF@Ni-HHTP; c-MOF content about 15 wt % in nanopaper by TGANi(II) in Ni-HHTP nanolayers · HHTP | 2D · CompositeComposite nanofibrillar material in which continuous conductive Ni-HHTP nanolayers are grown on cellulose nanofibers and assembled into freestanding nanopaper. | rendered page 3 / article p.9580 · Results and Discussion · Figure 1a,b |
| CNF@Ni-HITP hybrid nanofibers / nanopaperBrowse family: Ni₃(HITP)₂ / Ni–HITP | CNF@Ni-HITP; c-MOF content about 15 wt % in nanopaper by TGANi(II) in Ni-HITP nanolayers · HITP | 2D · CompositeCore-shell composite nanofibers with continuous Ni-HITP nanolayers compactly wrapping cellulose nanofibers; assembled into freestanding conductive nanopaper. | rendered page 3 / article p.9580 · Results and Discussion · Figure 1c |
| CNF-Ni-HHTP direct-mixed paperBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | CNF plus Ni-HHTP powder, 85:15 CNF:c-MOF by weightNi(II) in Ni-HHTP particles · HHTP | 2D · CompositePhysical mixture control paper made by direct mixing c-MOF powders and CNFs rather than interfacial nanolayer growth. | rendered page 4 / article p.9581 · Results and Discussion · Figure 2b |
| CNF-Ni-HITP direct-mixed paperBrowse family: Ni₃(HITP)₂ / Ni–HITP | CNF plus Ni-HITP powder, 85:15 CNF:c-MOF by weightNi(II) in Ni-HITP particles · HITP | 2D · CompositePhysical mixture control paper made by direct mixing c-MOF powders and CNFs rather than interfacial nanolayer growth. | rendered page 4 / article p.9581 · Results and Discussion · Figure 2b and Figure 3e,f |
| Ni-HHTP conductive metal-organic frameworkBrowse family: Ni₃(HHTP)₂ / Ni–HHTP | Ni-HHTP; exact empirical formula not reported in this paperNi(II) · HHTP (2,3,6,7,10,11-hexahydroxytriphenylene) | 2D · PristineConductive MOF with typical low-angle (100)/(200) XRD peaks near 4.7 and 9.5 degrees and a broader (001) reflection near 27.3 degrees in powder form. | rendered page 3 / article p.9580 · Results and Discussion · Figure 1b |
| Ni-HITP conductive metal-organic frameworkBrowse family: Ni₃(HITP)₂ / Ni–HITP | Ni3(HITP)2Ni(II) · HITP (2,3,6,7,10,11-hexaaminotriphenylene) | 2D · PristinePorous honeycomb 2D framework with hexagonal unit cell; main text references Ni3(HITP)2 and reports XRD peaks consistent with Ni-HITP. | rendered pages 2-3 / article pp.9579-9580 · Introduction; Results and Discussion · Figure 1b,c |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| CNF@c-MOF-CNT nanopaperresearch_0174__mat__mat_cnf_at_cmof_cnt | Electrode · Composite Sample · Composite | CNT-containing CNF@c-MOF nanopaper shown in original, bent, and folded states.cellulose nanofibers | SI p.17 · Supplementary Results · Figure S20 |
| CNF@Ni-HHTP nanopaperresearch_0174__mat__mat_cnf_at_ni_hhtp | Electrode · Target Sample · Composite | Ni-HHTP nanolayers grown on ion-exchanged CNFs by interfacial synthesis, then vacuum filtered into freestanding nanopaper.cellulose nanofibers | rendered pages 3-4 / article pp.9580-9581 · Results and Discussion · Figures 1b, 2a,b, 3d |
| CNF@Ni-HITP-10 nanopaperresearch_0174__mat__mat_cnf_at_ni_hitp | Electrode · Target Sample · Composite | Thickness-variant CNF@Ni-HITP nanopaper with thinner Ni-HITP nanolayer.cellulose nanofibers · Ni-HITP nanolayer about 10 nm; fibre diameter about 35 nm from SI Figure S16 | SI p.15 · Supplementary Results · Figure S16a,b,e |
| CNF@Ni-HITP-15 nanopaperresearch_0174__mat__mat_cnf_at_ni_hitp | Electrode · Target Sample · Composite | Thickness-variant CNF@Ni-HITP nanopaper with thicker Ni-HITP nanolayer.cellulose nanofibers · Ni-HITP nanolayer about 15 nm; fibre diameter about 45 nm from SI Figure S16 | SI p.15 · Supplementary Results · Figure S16c-e |
| CNF@Ni-HITP nanopaperresearch_0174__mat__mat_cnf_at_ni_hitp | Electrode · Target Sample · Composite | Ni-HITP nanolayers grown on ion-exchanged CNFs by interfacial synthesis, then vacuum filtered into freestanding nanopaper.cellulose nanofibers · nominal Ni-HITP nanolayer variants of 10 and 15 nm shown in SI Figure S16; standard sample thickness not uniquely specified | rendered pages 3-4 / article pp.9580-9581 · Results and Discussion · Figures 1c-f, 2b, 3d |
| CNF@Ni-HITP symmetric supercapacitorresearch_0174__mat__mat_cnf_at_ni_hitp | Electrode · Target Sample · Composite | Two identical CNF@Ni-HITP nanopaper electrodes sandwiched with filter paper soaked in PVA/KCl gel electrolyte and graphite paper current collectors.filter-paper separator and graphite-paper current collectors · 0.35 mm total device thickness; each CNF@c-MOF electrode 1.5 cm x 2.0 cm x 0.005 cm | rendered pages 5-7 / article pp.9582-9584 · Results and Discussion; Methods · Figure 4 |
| pure CNF controlresearch_0174__mat__mat_cnf | Unknown · Composite Component · Unknown | Cladophora cellulose pretreated in 2 wt % NaOH, TEMPO-oxidised, and ion-exchanged with Ni2+ for use as c-MOF growth substrate. | SI p.2 · Supplementary Experimental Section - Pretreatment on Cladophora cellulose |
| CNF-Ni-HHTP direct-mixed paperresearch_0174__mat__mat_cnf_ni_hhtp_mixed | Electrode · Composite Sample · Composite | Direct mixture of Ni-HHTP powder and CNFs in a 15:85 c-MOF:CNF weight ratio.cellulose nanofiber paper matrix | rendered pages 4-5 / article pp.9581-9582 · Results and Discussion · Figures 2b and 3e,f |
| CNF-Ni-HITP direct-mixed paperresearch_0174__mat__mat_cnf_ni_hitp_mixed | Electrode · Composite Sample · Composite | Direct mixture of Ni-HITP powder and CNFs in a 15:85 c-MOF:CNF weight ratio.cellulose nanofiber paper matrix | rendered pages 4-5 / article pp.9581-9582 · Results and Discussion · Figures 2b and 3e,f |
| pressed pure Ni-HHTP pelletresearch_0174__mat__mat_ni_hhtp | Pellet · Pristine Control · Pristine Framework | Pure Ni-HHTP powder pressed at 1.5 GPa for four-probe conductivity measurement. | rendered page 4 / article p.9581 · Results and Discussion · Figure 2b and Figure S9 |
| pure Ni-HHTP powderresearch_0174__mat__mat_ni_hhtp | Powder · Pristine Control · Pristine Framework | Pure c-MOF powder used for XRD and as precursor to pressed pellet and direct-mixed CNF-c-MOF controls. | SI p.2 · Supplementary Experimental Section - Synthesis of c-MOFs powder |
| pressed pure Ni-HITP pelletresearch_0174__mat__mat_ni_hitp | Pellet · Pristine Control · Pristine Framework | Pure Ni-HITP powder pressed at 1.5 GPa for four-probe conductivity measurement. | rendered page 4 / article p.9581 · Results and Discussion · Figure 2b and Figure S9 |
| pure Ni-HITP powderresearch_0174__mat__mat_ni_hitp | Powder · Pristine Control · Pristine Framework | Pure c-MOF powder used for XRD, XPS, and as precursor to pressed pellet and direct-mixed CNF-c-MOF controls. | SI p.2 · Supplementary Experimental Section - Synthesis of c-MOFs powder |